SINGLE CONTROL THERMOSTATIC VALVES AND THERMOSTAT CONTROL DEVICES SPECIFICATIONS 10/2018 - EN ICMA S.p.a. via Garavaglia, 4 20012 Cuggiono (MI) – ITALY Tel. +39 02 97249134 / +39 02 97249135 Fax +39 02 97241550 www.icmaspa.it e-mail: [email protected]pag. 1 770-772 771-773 774 775 774-940 775-940 FUNCTION Thermostatic valves are used to regulate and cut-off the flow of the heat transfer fluid that circulates inside air-conditioning system terminals (radiators, fan coils, etc.). Thermostat control devices are used in combination with the thermostatic valves to auto- matically regulate ambient temperature wherever they are installed, keeping the temperature at a preset value. This avoids the needless wasting of heat and provides a considerable saving of energy. PRODUCT RANGE THERMOSTATIC VALVES – COPPER, MULTI-LAYER, POLYETHYLENE PIPE Angled Pipe fitting Radiator 770 Angled thermostatic valve for multi-layer, polyethylene and copper pipe M24x1.5 G1/2” – G3/8” 772 Angled thermostatic valve for multi-layer, polyethylene and copper pipe G1/2” G1/2” – G3/8” Straight 771 Straight thermostatic valve for multi-layer, polyethylene and copper pipe M24x1.5 G1/2” – G3/8” 773 Straight thermostatic valve for multi-layer, polyethylene and copper pipe G1/2” G1/2” – G3/8” THERMOSTATIC VALVES – IRON PIPE Angled Pipe fitting and Radiator 774 Angled thermostatic valve for iron pipe G3/8” - G1/2”* - G3/4” 774-940Angled thermostatic valve for iron pipe G1/2” - G3/4” with anti-leackage pipe union Straight 775 Straight thermostatic valve for iron pipe G3/8” - G1/2”* - G3/4” 775-940Angled thermostatic valve for iron pipe G1/2” - G3/4” with anti-leackage pipe union THERMOSTAT CONTROL DEVICE Item Code Connection 1100 Thermostat control device KEYMARK Certified 821100AC20* M28x1.5 THERMOSTAT CONTROL DEVICE KEYMARK CERTIFIED 1100 * ICMA IDENTIFICATION NUMBER 87 THERMOSTATIC VALVES
Transcript
SINGLE CONTROL THERMOSTATIC VALVES AND THERMOSTAT CONTROL DEVICES
Thermostatic valves are used to regulate and cut-off the flow of the heat transfer fluid that circulates inside air-conditioning system terminals (radiators, fan coils, etc.). Thermostat control devices are used in combination with the thermostatic valves to auto-matically regulate ambient temperature wherever they are installed, keeping the temperature at a preset value. This avoids the needless wasting of heat and provides a considerable saving of energy.
770 Angled thermostatic valve for multi-layer, polyethylene and copper pipe M24x1.5 G1/2” – G3/8” 772 Angled thermostatic valve for multi-layer, polyethylene and copper pipe G1/2” G1/2” – G3/8”
Straight
771 Straight thermostatic valve for multi-layer, polyethylene and copper pipe M24x1.5 G1/2” – G3/8” 773 Straight thermostatic valve for multi-layer, polyethylene and copper pipe G1/2” G1/2” – G3/8”
THERMOSTATIC VALVES – IRON PIPE
Angled Pipe fitting and Radiator
774 Angled thermostatic valve for iron pipe G3/8” - G1/2”* - G3/4” 774-940Angled thermostatic valve for iron pipe G1/2” - G3/4” with anti-leackage pipe union
Straight
775 Straight thermostatic valve for iron pipe G3/8” - G1/2”* - G3/4” 775-940Angled thermostatic valve for iron pipe G1/2” - G3/4” with anti-leackage pipe union
THERMOSTAT CONTROL DEVICE
Item Code Connection
1100 Thermostat control device KEYMARK Certified 821100AC20* M28x1.5
For heating systems with copper, polyethylene or multi-layer polyethylene pipes, use the following fittings to connect ICMA thermostatic expansion valves to the heating system:
Item Fitting Thread
90 Patented SICURBLOC fitting for copper pipe G1/2” – M24x1.5 98 Fitting for multi-layer, polyethylene pipe G1/2” 100 Fitting for multi-layer, polyethylene pipe M24x1.5
For the codes of the thermostatic valves please refer to the tables in paragraph "DIMENSIONS AND CODES". For the fitting codes please refer to the specific technical sheet or the general ICMA catalogue.
SINGLE CONTROL THERMOSTATIC VALVES
ICMA thermostat control devices can be installed on all thermostatic valves of this line to convert heating systems with manual operating mode to automatic operating mode. To install the thermostat control device, simply replace the thermostatic valve knob with an ICMA thermostat control device. This is done with a few easy operations. These are described in detail in the paragraph “Thermostat Control Device Installation and Regulation”. The valves come in “straight” and “angled” versions so that they can be connected to two different types of pipes, at the side of the heating system: − The valves with GAS thread (side of heating system) are designed for connection to a steel pipe. − The valves with standard ICMA thread (side of heating system) are designed for connection to a copper pipe, a
polyethylene pipe and a multi-layer polyethylene pipe, for which specific pipe fittings are provided. Pressure loss can be detected by following the indications provided in the diagrams shown in the paragraph “Fluid Dynamic Characteristics”.
TECHNICAL SPECIFICATIONS
Performance Fluids used: Water, glycol solutions Max percentage of glycol: 50% Max operating pressure: 10 Bar Max differential pressure: 1 Bar (control dev. mounted) Heat transfer fluid temperat.: 5 ÷ 120°C Valve obturator travel: 3,5 mm Connection with control devices: M28x1,5
VALVE INSTALLATION
Install ICMA thermostatic valves on the heating system making sure to observe the direction of flow. The fluid must enter from the side on which the valve is connected to the system and go out toward the heating body. The following problems can occur if the valve is installed incorrectly: - A noise similar to a continuous sound of heavy hammering is due to the passage of fluid through the valve in the
wrong direction. This problem can only be solved by inverting the valve with holder on radiators that have this problem, thus restoring the correct direction of flow of the fluid inside the valve.
- A noise similar to a sound of heavy whistling during the succession of specified on and off times is due to an excessive flow inside the valve. This problem can be solved by keeping the system pressure under control, and equipping the system with variable rotation pumps along with differential pressure regulators, or by making use of differential by-pass valves.
CONNECTION TO RADIATOR
THERMOSTAT CONTROL DEVICE
FLOW
THERMOSTATIC VALVE
FLOW
CONNECTION TO SYSTEM
CONNECTION TO RADIATOR
CONNECTION TO SYSTEM
THERMOSTAT CONTROL
THERMOSTATIC VALVE
FLOW
FLOW
Materials Body, cap and socket union: CW617N Brass - UNI 12165 (Nickel-plated) Large screw: CW614N Brass - UNI 12164 Spring,obturator control rod: Stainless steel Liquid sealings: Peroxy EPDM Control knob: Nylon 6 – 30% Fiberglass (White color)
MAINTENANCE (REPLACEMENT OF THE GLAND O-RING SEALS)
In accordance with EN215 regulations, O-Ring seals can be replaced on all ICMA thermostatic valves even while the system is running without causing water leaks. To do this operation follow the instructions below:
THERMOSTAT CONTROL DEVICE
Thermostat control devices are used to regulate ambient temperatures automatically wherever they are installed so that the temperature is kept at a preset value. Residential and working environments often contain other sources of heat, such as electrical appliances, stove-top cookers, computers, servers, and simple sunlight. Combined with the heating system, these additional heat sources cause a needless, uncontrolled increase in ambient temperature and the wasting of heat. Thermostat control devices detect variations in ambient temperature in the environments in which they are installed making it possible to keep the heat supplied by the heating system at optimal temperatures and to provide a considerable saving of energy. The ICMA, 1100, thermostat control device can be installed on all thermostatic valves of this line. ICMA valves are supplied with the current manual control knob (for manual operation). The valves can be converted into thermostatic valves that function completely automatically by installing a thermostat control device. To install the thermostat control device, simply remove the thermostatic expansion valve control knob and replace it with the 1100 thermostat control device. This is done with just a few easy operations. These are described in detail in the paragraph “Thermostat Control Device Installation and Regulation”. ADJUSTMENT SCALE
The asterisk * indicates the freezing protection position, which corresponds to 7°C.
TECHNICAL SPECIFICATIONS
Performance
Minimum adjustment calibration (anti-freeze position): ts min 7°C (❅) Maximum adjustment calibration (position): ts max 28°C (5) Saving condition (position): 20°C (3) Maximum working pressure: PN 1000 KPa Maximum differential pressure: Δp 100 KPa Nominal capacity “qm N” (DP=10 KPa) angolo-diritta: qm N 190 Kg/h Maximum working temperature: 110°C Maximum storage temperature: 50°C Hysteresis: C 0,19 K Authority: a 0.9 Response time: Z 20 min Differential pressure influence: D 0,25 K Water temperature influence: W 0,7 K
Screw the gland back into the valve using a 14mm wrench.
The O-Ring seals can now be replaced
O-RING CODES:
P10002043 P10002243
Remove the gland using a 14mm wrench as shown in the picture.
Use of the protection cap: 55°≈1K Connection to thermostatic expansion valves: M28x1,5
Thermostat control device conform with Standard: EN215
Materials
Knob and stop ring: RAL 9010 ABS White Body and transmitter: RAL 9010 PA6 30% F.V. Sensor liquid: Thermostatic ethyl-acetate Connection ring: CW614N Brass - UNI 12164 - Nickel-plated Compensation pin: CW614N Brass - UNI 12164 Compensation pin spring: SH steel for springs - Phosphated
OPERATION
The thermostat head is made of a series of plastic parts containing a thermostatic component that is sensitive to temperature variations. Operation of the thermostatic component is based on the expansion of the thermostatic liquid contained inside it: − when the ambient temperature rises, the thermostatic liquid increases in
volume, resulting in the lengthening of the component; − when the ambient temperature drops, the thermostatic liquid decreases in
volume, resulting in the shortening of the component.
The variations in length of the thermostatic component are transmitted to the valve obturator by a small steel rod. These movements constantly regulate the flow of the heat transfer fluid to the heating component so that the temperature set on the thermostat control device remains constant over time.
The thermostat control device components are specially made of plastic materials to prevent the valve heat and that irradiated by the heating component from being transmitted to the thermostatic component by contact or induction. This prevents possible malfunctions in the control device.
The thermostat control device temperature is regulated by turning the numbered knob and bringing the corresponding symbol to the desired temperature close to the head indicator (see the following paragraph for more details).
- Position 3 on the adjustment scale corresponds to an ambient temperature of 20°C. This is the recommended temperature for ensuring a comfortable environment and reduced heat consumption and costs.
− The asterisk “❅” indicates the freezing protection position. This setting is recommended when one is absent for long period of time
during the winter months, or when one wishes to aerate the premises when outside temperatures are very low.
DIRECTION OF THERMOSTAT CONTROL DEVICE
The ICMA thermostat control devices should be installed in the horizontal position. Any other position could compromise their correct functioning.
THERMOSTAT CONTROL DEVICE INSTALLATION AND REGULATION
CONVERSION OF MANUAL VALVES TO THERMOSTATIC VALVES
INSTALLATION OF THERMOSTAT CONTROL DEVICE
TEMPERATURE ADJUSTMENT
BLOCKING OF TEMPERATURE
The thermostat control devices should never be placed inside niches or radiator boxes, behind curtains or exposed to direct sunlight. These conditions could result in incorrect detection of the actual ambient temperature and compromise the proper functioning of the device.
Insert the forked pin inside these two holes and push until com-pletely inserted. The knob is now blocked at the desired setting.
The same num-bering is also indicated on the lower part of the device. Identify the hole before and the hole after the number set.
Turn the thermo-stat control devi-ce knob to one of the setting num-bers from 0 to 5 shown on the knob. Setting ex-ample on the n°2.
Screw the thermo-stat control device ring on the valve body blocking it. Turn the knob a few times to adjust the compo-nents.
Install the thermo-stat control device on the valve body keeping the indi-cator turned up-ward so that it is clearly visible.
To facilitate in-stallation of the thermostat control device, turn the knob counter clockwise and bring it to the number 5.
The knob indicates the numbers from 0 to 5, which correspond to specific temperatures (see the adjustment scale shown at side). Set the desired temperature simply by turning the knob to the corresponding number close to the indicator.
The valve will appear as shown above.
Remove the knob and store it for possible use in the future.
Turn the white knob in the counter clock-wise direction to remove it com-pletely from the valve.
